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Finding the Fourth Proportional to 535,040.92, 738,362.52 and 305,628.56

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Solution

The fourth proportional to 535,040.92, 738,362.52 and 305,628.56 is: 421,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,040.92 : 738,362.52 = 305,628.56 : x
  2. Step 2: Convert to fraction form
    535,040.92/738,362.52 = 305,628.56/x
  3. Step 3: Cross multiply
    535,040.92x = 738,362.52 × 305,628.56
  4. Step 4: Simplify right side
    535,040.92x = 225,664,673,745.57
  5. Step 5: Solve for x
    x = 225,664,673,745.57/535,040.92
  6. Step 6: Final answer
    x = 421,770.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.